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Finding the Fourth Proportional to 160,221.90, 221,106.90 and 87,626.22

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Solution

The fourth proportional to 160,221.90, 221,106.90 and 87,626.22 is: 120,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,221.90 : 221,106.90 = 87,626.22 : x
  2. Step 2: Convert to fraction form
    160,221.90/221,106.90 = 87,626.22/x
  3. Step 3: Cross multiply
    160,221.90x = 221,106.90 × 87,626.22
  4. Step 4: Simplify right side
    160,221.90x = 19,374,761,862.92
  5. Step 5: Solve for x
    x = 19,374,761,862.92/160,221.90
  6. Step 6: Final answer
    x = 120,924.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.